/* DATA DESCRIPTION:
Citation:	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015 [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.970532
Abstract:	Sea ice surface roughness data were obtained during the NETCARE campaign in Apr, 2015 with a Single Beam Laser Altimeter (SBLA) mounted inside an electromagnetic system (EM-Bird) towed at 10-30 m height above surface by an Airplane (Basler BT-67, Polar-5). A method developed by Hibler (1972) was used to a) isolate the surface profile from low-frequency variations associated with the aircraft motion and b) to identify pressure ridge sails. The processing steps are described in https://epic.awi.de/id/eprint/56364/. We applied a ridge detection threshold of 0.6 m, which means that only sails higher 0.6 m are detected. Version and name of the processing routine: Laser_Altimeter_Processing_VS5_06_20.py (vers.5, Feb 22, 2024, https://gitlab.awi.de/sitem/sbla_processing.git). SBLA records (RIEGL - LD90) are provided at a sampling rate of 100 Hz. Sensor accuracy is 5 cm with a beam diameter at surface of 5.8 cm. This dataset includes recorded altimeter readings, the derived surface elevation and width/height/spacing of detected pressure ridge sails. Note on data quality: 5.8 cm .
Keyword(s):	Laser Altimeter; Ridge Height; Ridge Spacing; Ridge Width; Sea Ice Surface Roughness
Supplement to:	Krumpen, Thomas; von Albedyll, Luisa; Bünger, Hans Jakob; Castellani, Giulia; Hartmann, Jörg; Helm, Veit; Hendricks, Stefan; Hutter, Nils; Landy, Jack; Lisovski, Simeon; Lüpkes, Christof; Rohde, Jan; Suhrhoff, Mira; Haas, Christian (2025): Smoother sea ice with fewer pressure ridges in a more dynamic Arctic. Nature Climate Change, https://doi.org/10.1038/s41558-024-02199-5
Related code / software:	Electromagnetic induction sounding of sea-ice thickness / SBLA_Processing · GitLab (URI: https://gitlab.awi.de/sitem/sbla_processing.git)
Data processing report:	Suhrhoff, Mira (2021): Sea Ice Surface Roughness from Single Beam Laser Altimeter Measurements - Method Development and Comparison with Airborne Laser Scanner Profiles [thesis]. Universität Trier, hdl:10013/epic.30c63deb-b1f5-4c1e-927b-3d8a8d495b82
Coverage:	MEDIAN LATITUDE: 81.706781 * MEDIAN LONGITUDE: -94.400537 * SOUTH-BOUND LATITUDE: 71.704748 * WEST-BOUND LONGITUDE: -163.593170 * NORTH-BOUND LATITUDE: 87.445972 * EAST-BOUND LONGITUDE: -26.518856
	DATE/TIME START: 2015-04-07T16:48:38 * DATE/TIME END: 2015-04-24T02:31:18
License:	Creative Commons Attribution 4.0 International (CC-BY-4.0) (URI: https://creativecommons.org/licenses/by/4.0/)
Size:	25 datasets
*/
/* TABULAR SUMMARY OF DATASETS LISTED IN THIS COLLECTION: */
Filename	Citation of child dataset
NETCARE_P5_2015_SBLA_20150407T1445_84.49_-61.93_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150407T1445_84.49_-61.93_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970528
NETCARE_P5_2015_SBLA_20150407T1512_85.14_-61.57_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150407T1512_85.14_-61.57_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970525
NETCARE_P5_2015_SBLA_20150408T1404_83.56_-66.02_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150408T1404_83.56_-66.02_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970529
NETCARE_P5_2015_SBLA_20150408T1435_84.32_-68.62_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150408T1435_84.32_-68.62_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970510
NETCARE_P5_2015_SBLA_20150408T1503_85.18_-72.69_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150408T1503_85.18_-72.69_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970511
NETCARE_P5_2015_SBLA_20150408T1532_86.00_-78.41_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150408T1532_86.00_-78.41_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970512
NETCARE_P5_2015_SBLA_20150408T1604_86.65_-84.67_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150408T1604_86.65_-84.67_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970506
NETCARE_P5_2015_SBLA_20150409T1343_84.49_-56.52_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150409T1343_84.49_-56.52_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970508
NETCARE_P5_2015_SBLA_20150409T1406_85.22_-52.99_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150409T1406_85.22_-52.99_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970519
NETCARE_P5_2015_SBLA_20150409T1439_86.11_-46.82_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150409T1439_86.11_-46.82_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970518
NETCARE_P5_2015_SBLA_20150409T1508_86.88_-37.88_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150409T1508_86.88_-37.88_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970509
NETCARE_P5_2015_SBLA_20150409T1537_87.36_-28.69_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150409T1537_87.36_-28.69_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970513
NETCARE_P5_2015_SBLA_20150411T1550_82.50_-89.84_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150411T1550_82.50_-89.84_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970516
NETCARE_P5_2015_SBLA_20150411T1620_83.19_-91.53_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150411T1620_83.19_-91.53_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970515
NETCARE_P5_2015_SBLA_20150411T1648_83.88_-93.63_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150411T1648_83.88_-93.63_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970514
NETCARE_P5_2015_SBLA_20150411T1715_84.63_-96.49_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150411T1715_84.63_-96.49_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970517
NETCARE_P5_2015_SBLA_20150411T1745_85.33_-100.07_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150411T1745_85.33_-100.07_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970530
NETCARE_P5_2015_SBLA_20150411T1813_85.97_-104.54_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150411T1813_85.97_-104.54_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970522
NETCARE_P5_2015_SBLA_20150422T2214_72.26_-153.61_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150422T2214_72.26_-153.61_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970523
NETCARE_P5_2015_SBLA_20150422T2241_72.98_-151.36_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150422T2241_72.98_-151.36_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970521
NETCARE_P5_2015_SBLA_20150422T2308_73.59_-149.06_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150422T2308_73.59_-149.06_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970524
NETCARE_P5_2015_SBLA_20150422T2335_74.17_-146.61_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150422T2335_74.17_-146.61_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970520
NETCARE_P5_2015_SBLA_20150423T0001_74.75_-143.82_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150423T0001_74.75_-143.82_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970531
NETCARE_P5_2015_SBLA_20150423T2302_71.82_-159.87_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150423T2302_71.82_-159.87_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970527
NETCARE_P5_2015_SBLA_20150424T0004_72.26_-162.76_thr06_data_Vers5.tab	Hendricks, Stefan; Haas, Christian; Krumpen, Thomas (2024): Laser altimeter data obtained over sea-ice during the NETCARE campaign in Apr, 2015; profile NETCARE_P5_2015_SBLA_20150424T0004_72.26_-162.76_thr06_data_Vers5. https://doi.org/10.1594/PANGAEA.970526
